The MASIV legacy: Surveying AGN intra-day variability at radio wavelengths
The Micro-arcsecond Scintillation-Induced Variability (MASIV) Survey and its follow-up observations have provided large datasets of AGN intra-day variability (IDV) at radio wavelengths. These data have shown that IDV arises mainly from scintillation caused by scattering in the ionized interstellar m...
| Main Authors: | , , , , , , , , , |
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| Format: | Conference Paper |
| Published: |
Cambridge University Press
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/42336 |
| _version_ | 1848756391751188480 |
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| author | Koay, Jun Yi Macquart, Jean-Pierre Rickett, B. Bignall, Hayley Jauncey, D. Pursimo, T. Reynolds, Cormac Lovell, J. Kedziora-Chudczer, L. Ojha, R. |
| author2 | Areg Mickaelian |
| author_facet | Areg Mickaelian Koay, Jun Yi Macquart, Jean-Pierre Rickett, B. Bignall, Hayley Jauncey, D. Pursimo, T. Reynolds, Cormac Lovell, J. Kedziora-Chudczer, L. Ojha, R. |
| author_sort | Koay, Jun Yi |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The Micro-arcsecond Scintillation-Induced Variability (MASIV) Survey and its follow-up observations have provided large datasets of AGN intra-day variability (IDV) at radio wavelengths. These data have shown that IDV arises mainly from scintillation caused by scattering in the ionized interstellar medium (ISM) of our Galaxy, based on correlation with Galactic latitudes and line-of-sight Galactic electron column densities. The sensitivity of interstellar scintillation (ISS) towards source angular sizes has provided a new tool for studying the most compact components of radio-loud AGNs at microarcsecond (µas) scale resolution - much higher than any ground-based radio interferometer. We present here key results from the MASIV Survey and its follow-up observations, and point to relevant papers where these results have been published. |
| first_indexed | 2025-11-14T09:11:28Z |
| format | Conference Paper |
| id | curtin-20.500.11937-42336 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:11:28Z |
| publishDate | 2014 |
| publisher | Cambridge University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-423362023-02-27T07:34:26Z The MASIV legacy: Surveying AGN intra-day variability at radio wavelengths Koay, Jun Yi Macquart, Jean-Pierre Rickett, B. Bignall, Hayley Jauncey, D. Pursimo, T. Reynolds, Cormac Lovell, J. Kedziora-Chudczer, L. Ojha, R. Areg Mickaelian Felix Aharonian David Sanders scattering radio continuum: ISM galaxies: active The Micro-arcsecond Scintillation-Induced Variability (MASIV) Survey and its follow-up observations have provided large datasets of AGN intra-day variability (IDV) at radio wavelengths. These data have shown that IDV arises mainly from scintillation caused by scattering in the ionized interstellar medium (ISM) of our Galaxy, based on correlation with Galactic latitudes and line-of-sight Galactic electron column densities. The sensitivity of interstellar scintillation (ISS) towards source angular sizes has provided a new tool for studying the most compact components of radio-loud AGNs at microarcsecond (µas) scale resolution - much higher than any ground-based radio interferometer. We present here key results from the MASIV Survey and its follow-up observations, and point to relevant papers where these results have been published. 2014 Conference Paper http://hdl.handle.net/20.500.11937/42336 10.1017/S1743921314004463 Cambridge University Press restricted |
| spellingShingle | scattering radio continuum: ISM galaxies: active Koay, Jun Yi Macquart, Jean-Pierre Rickett, B. Bignall, Hayley Jauncey, D. Pursimo, T. Reynolds, Cormac Lovell, J. Kedziora-Chudczer, L. Ojha, R. The MASIV legacy: Surveying AGN intra-day variability at radio wavelengths |
| title | The MASIV legacy: Surveying AGN intra-day variability at radio wavelengths |
| title_full | The MASIV legacy: Surveying AGN intra-day variability at radio wavelengths |
| title_fullStr | The MASIV legacy: Surveying AGN intra-day variability at radio wavelengths |
| title_full_unstemmed | The MASIV legacy: Surveying AGN intra-day variability at radio wavelengths |
| title_short | The MASIV legacy: Surveying AGN intra-day variability at radio wavelengths |
| title_sort | masiv legacy: surveying agn intra-day variability at radio wavelengths |
| topic | scattering radio continuum: ISM galaxies: active |
| url | http://hdl.handle.net/20.500.11937/42336 |